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Locating disturbances, identifying energy savings potential<br />
Siemens’ Sicam Q200 power<br />
analyzer measures all important<br />
parameters for power quality,<br />
analyzes them and visualizes<br />
the results. When installed at<br />
key points in power distribution<br />
stations, transfer points,<br />
feeders for industrial plants,<br />
industrial grids, etc. the device<br />
detects current, power,<br />
voltage, frequency and<br />
harmonics. It identifies<br />
disturbances and can detect<br />
short circuits and nonlinear<br />
consumers based on<br />
measurements of current. The<br />
device also indicates whether<br />
and where damage has<br />
occurred. Operators can use the<br />
resulting data to decide<br />
whether to preventively replace<br />
a device or component.<br />
provides detailed insights into energy<br />
consumption on the grid and thus<br />
identifies savings potential.<br />
The power analyzer displays measured<br />
values directly on the device and transmits<br />
them to a computer in the user’s energy<br />
automation or SCADA system. The device<br />
also stores measured values for additional<br />
analyses and can transmit long-term data<br />
and certain events to a higher level<br />
control center for further analysis.<br />
The power analyzer is operated via an<br />
integrated web server, which saves<br />
money, since no additional software is<br />
needed for configuration or data<br />
evaluation.<br />
• Christine Rüth<br />
Taken from Pictures of the Future, the Siemens<br />
Magazine for Research and Innovation<br />
<strong>For</strong> more information,<br />
write to insight.in@siemens.com<br />
Sicam Q200 detects the power<br />
and corresponding phase angle<br />
of harmonics. These variables<br />
make it possible to determine<br />
the precise nonlinear consumer<br />
that is distorting a current.<br />
Active filters can then be<br />
installed to compensate for the<br />
harmonics. Thanks to its power<br />
measurements, the power<br />
analyzer also helps save<br />
energy. Measured data<br />
The Sicam Q200 power analyzer measures all important parameters for power quality, analyzes<br />
them and visualizes the results. In addition it can be interfaced with energy management<br />
devices.<br />
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